tests fail without google configuration

[skandragon]

Tests depend on some default Google cloud config being present.

When I run this on a laptop or inside a Docker build image without google credentials, I get this:

• Failure [0.225 seconds]
Controller #NewCredentialsController when a duplicate credential exists [It] returns an error
/Users/explorer/git/github/homedepot/go-clouddriver/internal/artifact/controller_test.go:96

  Expected
      <string>: dialing: google: could not find default credentials. See https://developers.google.com/accounts/docs/application-default-credentials for more information.
  to have prefix
      <string>: duplicate artifact credential listed: helm-test

  /Users/explorer/git/github/homedepot/go-clouddriver/internal/artifact/controller_test.go:98

The full list of errors:

Summarizing 14 Failures:

[Fail] Controller #NewCredentialsController when a duplicate credential exists [It] returns an error
/Users/explorer/git/github/homedepot/go-clouddriver/internal/artifact/controller_test.go:98

[Fail] Controller #NewCredentialsController when it succeeds [It] succeeds
/Users/explorer/git/github/homedepot/go-clouddriver/internal/artifact/controller_test.go:204

[Fail] Controller #ListArtifactCredentialsNamesAndTypes [BeforeEach] when it succeeds succeeds
/Users/explorer/git/github/homedepot/go-clouddriver/internal/artifact/controller_test.go:214

[Fail] Controller #GCSClientForAccountName [BeforeEach] when the account name does not exist in the cache returns an error
/Users/explorer/git/github/homedepot/go-clouddriver/internal/artifact/controller_test.go:242

[Fail] Controller #GCSClientForAccountName [BeforeEach] when it succeeds succeeds
/Users/explorer/git/github/homedepot/go-clouddriver/internal/artifact/controller_test.go:242

[Fail] Controller #GitClientForAccountName [BeforeEach] when the account name does not exist in the cache returns an error
/Users/explorer/git/github/homedepot/go-clouddriver/internal/artifact/controller_test.go:277

[Fail] Controller #GitClientForAccountName [BeforeEach] when it succeeds succeeds
/Users/explorer/git/github/homedepot/go-clouddriver/internal/artifact/controller_test.go:277

[Fail] Controller #GitRepoClientForAccountName [BeforeEach] when the account name does not exist in the cache returns an error
/Users/explorer/git/github/homedepot/go-clouddriver/internal/artifact/controller_test.go:312

[Fail] Controller #GitRepoClientForAccountName [BeforeEach] when the account requires token authorization succeeds
/Users/explorer/git/github/homedepot/go-clouddriver/internal/artifact/controller_test.go:312

[Fail] Controller #GitRepoClientForAccountName [BeforeEach] when it succeeds succeeds
/Users/explorer/git/github/homedepot/go-clouddriver/internal/artifact/controller_test.go:312

[Fail] Controller #HelmClientForAccountName [BeforeEach] when the account name does not exist in the cache returns an error
/Users/explorer/git/github/homedepot/go-clouddriver/internal/artifact/controller_test.go:358

[Fail] Controller #HelmClientForAccountName [BeforeEach] when it succeeds succeeds
/Users/explorer/git/github/homedepot/go-clouddriver/internal/artifact/controller_test.go:358

[Fail] Controller #HTTPClientForAccountName [BeforeEach] when the account name does not exist in the cache returns an error
/Users/explorer/git/github/homedepot/go-clouddriver/internal/artifact/controller_test.go:393

[Fail] Controller #HTTPClientForAccountName [BeforeEach] when it succeeds succeeds
/Users/explorer/git/github/homedepot/go-clouddriver/internal/artifact/controller_test.go:393